154 MALACODERMATA. 
large series which have been since collected by Mr. Champion, some of which measure 
6 millimetres in length. It is an extremely narrow graceful species, and exhibits the 
same depression and contraction of the elytra before the apex as the preceding and 
following species. 
A specimen from San Gerdénimo is shown in the Plate. 
18. Clerus contractus. (Tab. VIII. fig. 13.) 
Cleri concinni affinis at minor. Niger, opacus ; prothorace elytris antice latiore, postice angustato ; elytris medio 
depressis et contractis, basi tuberculo atripiloso, medio fascia alba arcuata suturam non attingente. 
Long. 4 millim. 
Hab. Guatemata, El Tumbador, Volcan de Atitlan, San Gerdnimo (Champion). 
The specimen figured is from El Tumbador. 
Even smaller than the average size of C. concinnus, which it is allied rather closely 
to, but from which it differs in not having the elytra red at the base. The thorax 
is larger in proportion. In addition to the basal tubercle, the elytra have a raised black 
point above the white fascia, within which, between it and the fascia, there is a very 
polished shining space, which has the effect of throwing down the fascia, so as to make 
the elytra appear more depressed there than they are in reality. The apical portion is 
evenly rounded and bluish black, without cinereous hairs. This species has a singularly 
ant-like look, and, indeed, closely resembles an ant of the genus Cryptocerus from the 
same district. About a dozen examples have occurred. 
19. Clerus beatus. (Tab. VIII. fig. 23.) 
Niger, subnitidus, capite antice, antennarum basi, prothorace postice elytrorumque dimidio basali rufis ; elytris 
tuberculo nigro, fascia mediana retrorsum curvata alteraque subapicali recta albidis, apice plumbeo. 
Long 5 millim., 
Hab. Mexico, Playa Vicente (Hoge); Guatemata, San Gerénimo (Champion). 
The specimen figured is from San Gerdnimo. ; 
This elegant little species is to be recognized, among the series with a basal tubercle, 
by its very depressed form. The basal joint of the antenna is red. The elytra are 
obsoletely substriate ; the first white fascia is bordered with black towards the base. 
In the Mexican example only the humeral region is red. There is no other species to 
which this is very nearly allied: it is wider than C. concinnus; nor is there any sign of 
a tubercle in the middle of the elytra, as in the two preceding species. 
Two specimens are all I have seen. 
20. Clerus sanguinipes. 
Clerus sanguinipes, Chevr. Rev. et Mag. Zool. 1874, p. 14°. 
Hab. Mexico!; Panama, Volcan de Chiriqui (Rid0é). 
A single specimen is all that I have seen. 
